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38-690 audio problem
jerryhawthorne
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#14

09-13-2012, 10:57 PM
Chuck, hopefully someone on this forum has specs for that transformer. Somewhere in all the Philco tech stuff I would think this was documented. Sorry I can't help with that. Perhaps the re winder of the transformer can determine the wind ratio of each stage. I know on the one I sent out, we had some controversy on the current in output windings, they indicated no problem. They would measure the wire gauge. Also had them adjust the input level to 125V due to the higher line voltage at my friends house. You might give them a call and see if they can reverse engineer your transformer. Of course, I know nothing. Did love your scope picture of IF response in the low and high "fidelity" mode, helped me to understand what it does.
Jerry
A friend in need is a pest!  Bill Slee ca 1970.
(This post was last modified: 09-13-2012, 11:00 PM by jerryhawthorne.)
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Messages In This Thread
38-690 audio problem - by chucka - 08-05-2012, 12:57 PM
RE: 38-690 audio problem - by morzh - 08-05-2012, 02:22 PM
RE: 38-690 audio problem - by Ron Ramirez - 08-05-2012, 04:15 PM
RE: 38-690 audio problem - by chucka - 08-06-2012, 12:44 AM
RE: 38-690 audio problem - by codefox1 - 08-06-2012, 11:02 AM
RE: 38-690 audio problem - by Ron Ramirez - 08-06-2012, 03:51 PM
RE: 38-690 audio problem - by Ron Ramirez - 08-08-2012, 08:08 PM
RE: 38-690 audio problem - by chucka - 08-25-2012, 05:25 PM
RE: 38-690 audio problem - by chucka - 09-08-2012, 09:45 AM
RE: 38-690 audio problem - by jerryhawthorne - 09-08-2012, 11:09 PM
RE: 38-690 audio problem - by Ron Ramirez - 09-09-2012, 09:46 AM
RE: 38-690 audio problem - by jerryhawthorne - 09-09-2012, 01:34 PM
RE: 38-690 audio problem - by chucka - 09-10-2012, 10:17 PM
RE: 38-690 audio problem - by jerryhawthorne - 09-13-2012, 10:57 PM
RE: 38-690 audio problem - by chucka - 09-13-2012, 11:25 PM
RE: 38-690 audio problem - by jerryhawthorne - 09-13-2012, 11:41 PM
RE: 38-690 audio problem - by Ron Ramirez - 09-14-2012, 05:47 AM
RE: 38-690 audio problem - by chucka - 09-14-2012, 07:46 AM
RE: 38-690 audio problem - by chucka - 09-14-2012, 02:46 PM
RE: 38-690 audio problem - by Diverted - 03-17-2015, 11:32 AM



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